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1they didn't live in M.some years ag
where did they live some years ago?
2we didn't discuss the plan at the last meeting.
what did we discuss at the last meeting?
3he didn't stay in Kiev a month ago.
when did he stay in Kiev?
4we didn't work at this office last year.
where did we work last year?
5they didn't go on holiday together.
they went on holiday together,didn't they?
6these colours weren't fine.
what colours were fine?
7he didn't pay for everything.
what did he pay for?
8the students didn't speak English.
what language did the students speak?
9the lecturer didn't come in half an hour
did the lecturer come in half an hour or in an hour?
10we didn't send the telehram two days ago.
when did we send a telegram?
11it didn't take them two hours to get home.
how much time did it take them to get home?

1. Did they live in Moscow some years ago?
They didn't live in Moscow some years ago.
2. Did you discuss the plan at the last meeting?
We didn't discuss the plan at the last meeting.
3. Did he stay in Kiev a month ago?
He didn't stay in Kiev a month ago.
4. Did you work at this office last year?
We didn't work at this office last year.
5. Did they go on holiday together?
They didn't go on holiday together.
6. Were these colours fine?
These colours weren't fine.
7. Did they lose their way?
They didn't lose their way.
8. Did he pay for everything?
He didn't pay for everything.
9. Did the students speak English?
The students didn't speak English.
10. Did the lecturer come in half an hour?
The lecturer didn't come in half an hour.
11. Did you send the telegram two days ago?
We didn't send the telegram two days ago.
12. Did it take them two hours to get home?
It didn't take them two hours to get home.